Weft-replenishing mechanism for looms



H. W. YOUNGQUIST. WEFT 'REPLENISHING MECHANISM FOR LOOMS. APPLICATION FILED AUG-2i, 1919.

1 ,396, 1 54, Patented Nov. 8, 1921.

2 SHEETSSHEET I.

H. W. YOUNGQUIST. WEFT REPLENISHING MECHANISM FOR LOOMS. APPLICATION FILED AUG.21, 1919.

1,396,154, Patented Nov. 8,1921.

2 SHEETS-SHEET 2.

HENRY W. YOUNGQUIST, OF MANCHESTER, N EW CORPORATION, OF HOPEDALE, MASSACHUSETTS,

EZABIPSHIRE, ASSIGNOR TO DRAPER A CORPORATION OF MAINE.

WEFT-REPLENISHING MECHANISM FOR LOOMS.

Application filed August 21,

T 0 all whom it may concern Be it known that I, HENRY W. YOUNG- QUIST, a citizen of the United States, residing at Manchester, in the county of Hillsborough, State of New Hampshire, have invented a certain new and useful Improvement in Weft-Replenishing Mechanism for Looms, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention is for employment in loom mechanisms of the class effecting replenishment of the loom-shuttles by introducing into shuttle needing replenishment a fill ing-carrier loaded with weft 0r filling. It provides improved means for controlling a filling-carrier during transfer from the magazine or feeder containing the reserve supply of loaded filling-carriers to the shuttle. It provides also for centering the filling-carrier and its load of filling widthwise withreference to the shuttle, and for preventing longitudinal displacement of the filling-carrier.

One characteristic feature of the inven tion consists in providing yieldable means which permits the carrier-engaging portion of the controlling means to shift so as to compensate for any initial want of perfect register of the said engaging portion with the head of the leading magazine or feeder, occupying its waiting position against the end-stop. The said yieldable means, 2'. 6., capacityfor shifting, compensates also for any want of perfect register of the head of a descending carrier with'relation to the surfaces inside the shuttle between which it should enter, by allowing the engaging portion and carrier to move either rearward or forward so as to accommodate the carrier-head to the position of the said surfaces. 'Also, it compensates for any movement of the shuttle either forward or rearward, due to the swing of the lay, which may take place after the carrierhead has begun its entrance between the said surfaces, while the controlling device remains in engagement with the said head.

The feature just mentioned is of importance in those cases in which it is re quired that a filling-carrier contained within a shuttle should have a certain predetermined position, rotatively considered. For

example, in looms provided with certain Specification of Letters Patent.

filling-carrier in the Patented Nov. 8, 1921. 1919. Serial No. 318,866.

forms of the depletion-detectors known as fillmgfeelers use is made of bobbins that are constructed with special features for cooperation with the said feelers. For the proper action of the feelers, correct presentation of the said features with reference to the feelermembers is necessary. That necessity exlsts when a bobbin is formed with a recess or slot intended to be entered in a feeling action by the feeler-member as soon as said recess or slot is uncovered by reason of the substantial exhaustion of the filling-supply carried by the bobbin. TV hen occupying the shuttlethe bobbin should be so positioned rotatively as to present the recess or slot in line with the feeler-member; otherwise the feeler-member will not enterthe'recess or slot when the uncovering takes place. and the intended function of the feeler will not be performed. s

'A second feature of invention is that of so locating the engaging portion of a controlling device that it enters the shuttle entirely beyond the jaws in the latter which take hold of the head of the filling-carrier. This location enables the said engaging po tion to pass completely down within the chamber of the shuttle Without striking the shuttle-jaws. It also enables the engaging port-ion to be proportioned so as to extend more completely across the diameter of the head of the filling-carrier than otherwise would be practicable, alongside and beyond the longitudinal axis of the filling-carrier, thereby rendering the controlling device more efiicient in restraining the filling-carrier from turning around said axis during the transferring operation.

The feature of invention which provides 9 for centering the filling-carrier and its load of filling widthwise of the shuttle in entering the same consists in providing jaws to pass down at opposite sides of the fillingcarrier between the ringed head of the latter and its barrel, and longitudinal displace ment of the entering fillingcarrier relative to the shuttle isprevented by engagement of said jaws with shoulders on the filling-carrier adjacent the ringed head.

A device embodying the different features of the invention provides in advantageous manner for placing a bobbin in a shuttle in the required position, and at the same time overcomes a number of practical difficulties.

The said features'may be used separately, and the physical embodiment of the princip les and features of the invention may vary more or less in construction and in the rela tions of the parts.

Figure 1 shows one form of embodiment, in connection with certain of the main parts of'a weft-replenishing mechanism and adjacent portions of the loom proper, the rotary part of the magazine or feeder being in section from front to rear.

Fig. 2 is a rear elevation of the-hammer or transferrer and controlling device of Fig. 1, together with a filling-carrier and a por tion of the loom-shuttle in longitudinal section. v Fig. 3 is a view of the hammer or transferrer and controlling device looking from the side opposite that shown in Fig. 1, with afilling-carrier head in cross-section.

- Fig. 4 isa View 1n elevation of a fillingcarrier,in this instance a bobbin, showing the slot. therein.

Fig. 5 is a top View of the said fillingcarrier.

Fig. 6 is an end vlew of the head thereof.

The features of the I invention are embodied in and in connectionwitli the controllingdevice E, Figs. 1, '2 and 3, that moves in unison with and in this instance is mounted upon the hammer or transferrer 11. I will explain the said features after first referring to certain parts of the general organization of the loom and its replenishing mechanism, not themselves in cluded in the invention butwith which the said controlling device is associated in use.

The loom-frame 1, lay-sword '2, lay-beam 3, shuttle-box front 4 and back 5, the stand 6'fixed upon the loom-frame at one end of the breast-beam, end-plate 6 integral with said stand 6, and stud 7 projecting outward from end-plate 6, and the butt-holding plate 8 and connected ratchet-wheel 9, both integral with the elongated hub 10 sleeved upon the said stud, all being old and well known, need no extended description. The

' same is true respecting the hammer or.

transferrer 11, exceptin so far as the latter is modified'in applying the invention thereto, it being shown sleeved as usual'upon the stud 12 projecting outwa'rd from'the said stand, and also as having as usual connected pivotally to its downwardly-extending arm 11 the latch 13 which is engaged'by the finger 14 of the shuttle-feeler "14 so that theposition of the said latch and the time of Its engagement by the bunter1'5 carried by the layare controlled through the shuttle-feeler. It also is true respecting the in -dicating rockshaft-lomounted in bearings at the front of the loom, such rockshaft being controlled by the filling-detector devices of the loom and itself controlling by means "of flea-r1111? the positionsof the shut l bunter 15 when the lay beats up. As is well-known, when such engagement occurs the hammer or transferrer llis actuated to transfer the leading filling-carrier Z) in the magazine or feeder, from its position against the end-stop 18, down downward past the yielding gate-19 into the shuttle 20 on the lay. 1 of the drawings shows a dog or pawl 21 of well-known character, carriedby the hammer or transferrer 11, and engaging with the teeth of the ratchet-wheel 9 so that as the hammer or transferrer rises after having been swung downward for a trans? ferring action the saiddog or pawl turns the rotary part of the magazine or feeder to bring the next reserve bobbin against the end-stop 18, and 22 is an old form of holding or detent-pawl pivoted upon the stand 2 and also engaging withthe teeth of said ratchet-wheel 9 toprevent the rotary part 1 angles with the feeler-slot, is as heretofore with theexception of having its head'also slabbed off at 6 bfl bet'weenthezrings b and the bobbin-barrel. The shuttle 2O is as heretofore with its fee'ler-slot 20 shown in Fig. 2, its grooved spring jaws "21 (only one shown) for engaging the ringed head of the bobbin, its incline 22 for deflecting the bobbinendwise within the shuttle, and its secondary jaws 23 (only'one shown) for engaging withthe fiat sides of the slabbedof]? butt-end b of the bobbin'to cause the" feeler-slotb"- of the bobbin to register with the feeler-slot 20 of the shuttle while the bobbin is in place within the shuttle.

AS is usual when feeler-bobbins having slots are employed, the butt-holding plate or disk 8 'of the rotary magazineor feeder isformed with radial parallel-sided slots 8 into which the-slabbed-off butt-ends of the bobbins'fit, so that while in the magazine orfeeder the slots face in a particu'lar di-' of the hammer or transferrer the saidjaws pass. down on opposite sides of .the slab-. sided portion 16? of the bobbin as in'Fig. 3, and. through their engagement with the'flat- 2 the beginning of the downward movement f tened surfaces of such portion during the descent of the bobbin toward the shuttle shuttle-contained secondary jaws 23, Fig.

2, so as to keep the -feelerslot Z1 thereof in register with the feeler-slot in the front wall of the shuttle-body.

In accordance with the invention I confer upon the jaws e,'e,'a yieldability which as stated at the outset in this specification is one characteristic of the'invention. In the illustrated embodiment of the'invention this yieldability is secured bythe employment of a spring-controlled controlling device E that is mounted upon its'carrier (the hammer or transferrerlwith capacity to yield both forwardly and rearwardly thereon. The capacity for movement is provided for by making the body eof-the controlling device as a fiat piece,'forming a guideway in the head of the carrying member (hammer or transferrer), and fitting said flat piece into said guideway. The body 6' is held in the said guideway by means of a screw 6 Figs. 1 and 3, extending transversely through the said head, and of a stud e that extends rearwardly from a depending lug on the main arm of the hammer or transferrer. The transversely-extending screw e occupies a slot e (dotted lines Fig. 3) in such body of sufficient length to permit the required extent of longitudinal sliding movement of the controlling device. The stud e enters a hole that is formed in a lug e projecting down from the body 6. The capacity for yielding in both directions is secured through the employment of spring-tension for centering the controlling device in an intermediate position. Thus I have shown an expanding spiral spring 0 surrounding the stud e acting expansively against the lug e of the body 6' to hold the controlling device rearwardly, and keeping a lateral projection e, Fig. 1, thereof in contact with a yielding stop constituted by one arm of a bent spring 6 mounted on the corresponding side of the said main arm of the hammer or transferrer. At e is shown a pin projecting from such arm and serving to define the normal position of the said yielding stop. The ends of the jaws e, e, of the controlling device are rounded or beveled at their inner sides to render the engaging portion of the controlling device bell-mouthed so as to facilitate entry of the portion b of a bobbin between the said jaws.

It will be perceived that by the conjoint action of the two springs e and e the controlling device will be maintained ordinarily in its normal position, represented in Figs. 1 and 3, upon the hammer or transferrer,

but the spring e will yield to permit forward movement of the controlling device when sufficient pressure to overcome the resistance of such spring acts in a forward direction against the front jaw e (the lefthand jaw in Fig. 1), while the spring a will yield to permit rearward movement of the said device when suflicient pressure to overcome the resistance thereof acts in a rearward direction against the rear jaw e.

The preferred location of the engaging portion of the controlling device is illustrated in Fig. 2, in which the jaws e, e, are shown as so located upon the hammer or transferrer that in entering the shuttle they will do so entirely beyond the portions of the carrier-head-engaging jaws 21, which are engaged with the ringed portion of the carrier-head. Consequently, no matter how deeply the said jaws may pass down into the chamber of the shuttle they will not strike upon the said jaws. The length of jaw which I am enabled to use by reason of this location is illustrated in Fig. 3.

The employment of jaws e, e, passing down at front and rear, respectively, of the filling-carrier at the inner side of the head of the latter, 2'. 6-, between the said head and the barrel of the fillingcarrier, effects the centering of the said barrel and its load of filling widthwise of the shuttle in entering the same. The engagement of the said jaws with the shoulders that are produced at the said inner side by slabbing-ofi' the filling-carrier at 6 72 prevents longitudinal displacement of the entering filling-carrier toward the eyeend of the shuttle. By reason of this en- 'gagement, the usual vertical grooving of the end-stop 18. and shoulder on the head of the hammer or transferrer, to. prevent the said longitudinal displacement, are rendered unnecessary and may be dispensed with if deemed desirable. The said shoulder has been omitted in the case of the illustrated construction.

What is claimed as the invention is 1. In weft-replenishing mechanism for looms, a transferrer having filling-carrier controlling means yieldably mounted thereupon to permit compensating self-adjustment upon engagement with said filling carrier and during transfer.

2. In weft-replenishing mechanism for looms, a transferrer having filling-carrier controlling means movably mounted thereupon, and means for yieldingly keeping said controlling means in a predetermined normal position.

3. In weft-replenishing mechanism for looms, a transferrer having filling-carrier controlling means movable forward and rearward relative thereto, and means for yieldingly. keeping said controlling means normally in an intermediate position.

1O embracea portion of the filling-carrier at the time of transfer, and means for yield- 4; In weft-replenishing mechanism for looms, a transferrer having combined there- 7 with means for rotatively controlling a ingly keeping said jaws in a predetermined normal position.

:6. In weft-replenishing mechanism for looms, a transferrer provided with ijaws which control a filling-carrier rotativelyat time of transfer, movable forward and rearward in unison and means for yieldingly keeping said jaws normally in an intermediate position. v

7. In. a weft replenishing mechanism, a

,transferrer having a filling carrier controlling device comprisingclamping jaws which engage opposite sides of the filling carrier between the head and the filling carrying portion and enter the shuttle beyond the jaws of the latter whereby rotation of the fill ng carrier duringtransfer is prevented.

8. In a weft replenishing mechanism, a

'transferrer having a filling carrier controlling device comprisingyieldable clamping jaws which engage opposite sides of the filling carrier between thehead and-the filling carrying fportion andenter the shuttle beyondthe jaws of the latter whereby rotation of the filling carrier during transferis? prevented and means for keeping said yieldablfe jaws normally in a' predetermined positio'n In testimony whereof I affix my signature in presence of two witnesses. 1 v V HENRY W. YOUN GQUIST. Witnesses: f v

V GHAs. F. RANDALL,

ELLEN 0. SPRING? i 

